chore: Cherry-picked changes from upstream

[github-actions]

Cherry-picked changes from upstream.

[github-actions]

🚀 PR Updated!

The PR has been updated with the latest cherry-picked commits.

@step-security/maintained-actions-dev Please review and approve the changes.

❌ Build script failed. No files were committed.

📦 Target Release Version: v3.1.0
📋 Previous Release Version: v3.0.1

❗ Missing Files:

• images/upload.png
• integration-test/one-does-not-simply.jpg
• src/upload-file/build-upload-file.js
• src/upload-file/index.js

🛑 Workflow Files (Cannot be auto-applied by GitHub Actions):

• .github/workflows/15-slack-upload-file.yml from commit 17eb949353ada4d27f8ca327e053d5f3c601daca
• .github/workflows/15-slack-upload-file.yml from commit 433fef9978d3adae73168bfc9c5a7ce722780231

❌ Conflicting Files:

• README.md from commit 17eb949353ada4d27f8ca327e053d5f3c601daca

[github-actions]

🔍 Cherry-Pick Verification Report

📦 Upstream Changes: v3.0.1...v3.1.0

📋 File-by-File Analysis:

.github/workflows/15-slack-upload-file.yml

• Upstream has changes: ✅ Yes
• File exists in PR: ❌ No
• Status: 🔴 Missing - File missing in PR (upstream has 29 additions, 0 deletions)

README.md

• Upstream has changes: ✅ Yes
• File exists in PR: ❌ No
• Status: 🔴 Missing - ❌ No PR patch available (+70 -5)

action.yml

• Upstream has changes: ✅ Yes
• File exists in PR: ✅ Yes
• Changes match: ✅ Yes
• Status: 🟢 Perfect - ✅ All changes applied correctly (+13 -1)

integration-test/end-to-end.js

• Upstream has changes: ✅ Yes
• File exists in PR: ✅ Yes
• Changes match: ✅ Yes
• Status: 🟢 Perfect - ✅ All changes applied correctly (+13 -0)

src/integration/slack-api-post.js

• Upstream has changes: ✅ Yes
• File exists in PR: ✅ Yes
• Changes match: ✅ Yes
• Status: 🟢 Perfect - ✅ All changes applied correctly (+114 -1)

src/integration/slack-api.js

• Upstream has changes: ✅ Yes
• File exists in PR: ✅ Yes
• Changes match: ✅ Yes
• Status: 🟢 Perfect - ✅ All changes applied correctly (+100 -2)

src/integration/slack-api.test.js

• Upstream has changes: ✅ Yes
• File exists in PR: ✅ Yes
• Changes match: ✅ Yes
• Status: 🟢 Perfect - ✅ All changes applied correctly (+50 -0)

src/invoke.js

• Upstream has changes: ✅ Yes
• File exists in PR: ✅ Yes
• Changes match: ✅ Yes
• Status: 🟢 Perfect - ✅ All changes applied correctly (+4 -0)

src/upload-file/build-upload-file.js

• Upstream has changes: ✅ Yes
• File exists in PR: ❌ No
• Status: 🔴 Missing - File missing in PR (upstream has 25 additions, 0 deletions)

src/upload-file/index.js

• Upstream has changes: ✅ Yes
• File exists in PR: ❌ No
• Status: 🔴 Missing - File missing in PR (upstream has 35 additions, 0 deletions)

---

📊 Summary:

• Total files changed upstream: 10
• Files present in PR: 6/10
• Files with matching changes: 6/10

❌ Overall Status: 🔴 INCOMPLETE - Missing files or changes

[github-actions]

🔍 Cherry-Pick Verification Report

📦 Upstream Changes: v3.0.1...v3.1.0

📋 File-by-File Analysis:

.github/workflows/15-slack-upload-file.yml

• Upstream has changes: ✅ Yes
• File exists in PR: ❌ No
• Status: 🔴 Missing - File missing in PR (upstream has 29 additions, 0 deletions)

README.md

• Upstream has changes: ✅ Yes
• File exists in PR: ✅ Yes
• Changes match: ❌ No
• Status: 🟡 Partial - ❌ Cherry-pick incomplete (+70 -5) | Missing 3 additions

action.yml

• Upstream has changes: ✅ Yes
• File exists in PR: ✅ Yes
• Changes match: ✅ Yes
• Status: 🟢 Perfect - ✅ All changes applied correctly (+13 -1)

integration-test/end-to-end.js

• Upstream has changes: ✅ Yes
• File exists in PR: ✅ Yes
• Changes match: ✅ Yes
• Status: 🟢 Perfect - ✅ All changes applied correctly (+13 -0)

src/integration/slack-api-post.js

• Upstream has changes: ✅ Yes
• File exists in PR: ✅ Yes
• Changes match: ✅ Yes
• Status: 🟢 Perfect - ✅ All changes applied correctly (+114 -1)

src/integration/slack-api.js

• Upstream has changes: ✅ Yes
• File exists in PR: ✅ Yes
• Changes match: ✅ Yes
• Status: 🟢 Perfect - ✅ All changes applied correctly (+100 -2)

src/integration/slack-api.test.js

• Upstream has changes: ✅ Yes
• File exists in PR: ✅ Yes
• Changes match: ✅ Yes
• Status: 🟢 Perfect - ✅ All changes applied correctly (+50 -0)

src/invoke.js

• Upstream has changes: ✅ Yes
• File exists in PR: ✅ Yes
• Changes match: ✅ Yes
• Status: 🟢 Perfect - ✅ All changes applied correctly (+4 -0)

src/upload-file/build-upload-file.js

• Upstream has changes: ✅ Yes
• File exists in PR: ✅ Yes
• Changes match: ✅ Yes
• Status: 🟢 Perfect - ✅ All changes applied correctly (+25 -0)

src/upload-file/index.js

• Upstream has changes: ✅ Yes
• File exists in PR: ✅ Yes
• Changes match: ✅ Yes
• Status: 🟢 Perfect - ✅ All changes applied correctly (+35 -0)

---

📊 Summary:

• Total files changed upstream: 10
• Files present in PR: 9/10
• Files with matching changes: 8/10

❌ Overall Status: 🔴 INCOMPLETE - Missing files or changes